| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.beam.runners.fnexecution.translation; |
| |
| import static org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.function.BiConsumer; |
| import org.apache.beam.model.pipeline.v1.RunnerApi; |
| import org.apache.beam.model.pipeline.v1.RunnerApi.PCollection; |
| import org.apache.beam.runners.core.InMemoryTimerInternals; |
| import org.apache.beam.runners.core.StateNamespace; |
| import org.apache.beam.runners.core.StateNamespaces; |
| import org.apache.beam.runners.core.TimerInternals; |
| import org.apache.beam.runners.core.construction.RehydratedComponents; |
| import org.apache.beam.runners.core.construction.Timer; |
| import org.apache.beam.runners.core.construction.WindowingStrategyTranslation; |
| import org.apache.beam.runners.core.construction.graph.PipelineNode; |
| import org.apache.beam.runners.fnexecution.wire.WireCoders; |
| import org.apache.beam.sdk.coders.Coder; |
| import org.apache.beam.sdk.transforms.windowing.BoundedWindow; |
| import org.apache.beam.sdk.transforms.windowing.PaneInfo; |
| import org.apache.beam.sdk.util.WindowedValue; |
| import org.apache.beam.sdk.values.KV; |
| import org.apache.beam.sdk.values.WindowingStrategy; |
| import org.apache.beam.vendor.grpc.v1p21p0.com.google.protobuf.InvalidProtocolBufferException; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.BiMap; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableBiMap; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Sets; |
| import org.joda.time.Instant; |
| |
| /** Utilities for pipeline translation. */ |
| public final class PipelineTranslatorUtils { |
| private PipelineTranslatorUtils() {} |
| |
| /** Creates a mapping from PCollection id to output tag integer. */ |
| public static BiMap<String, Integer> createOutputMap(Iterable<String> localOutputs) { |
| ImmutableBiMap.Builder<String, Integer> builder = ImmutableBiMap.builder(); |
| int outputIndex = 0; |
| // sort localOutputs for stable indexing |
| for (String tag : Sets.newTreeSet(localOutputs)) { |
| builder.put(tag, outputIndex); |
| outputIndex++; |
| } |
| return builder.build(); |
| } |
| |
| /** Creates a coder for a given PCollection id from the Proto definition. */ |
| public static <T> Coder<WindowedValue<T>> instantiateCoder( |
| String collectionId, RunnerApi.Components components) { |
| PipelineNode.PCollectionNode collectionNode = |
| PipelineNode.pCollection(collectionId, components.getPcollectionsOrThrow(collectionId)); |
| try { |
| return WireCoders.instantiateRunnerWireCoder(collectionNode, components); |
| } catch (IOException e) { |
| throw new RuntimeException("Could not instantiate Coder", e); |
| } |
| } |
| |
| public static WindowingStrategy getWindowingStrategy( |
| String pCollectionId, RunnerApi.Components components) { |
| RunnerApi.WindowingStrategy windowingStrategyProto = |
| components.getWindowingStrategiesOrThrow( |
| components.getPcollectionsOrThrow(pCollectionId).getWindowingStrategyId()); |
| |
| try { |
| return WindowingStrategyTranslation.fromProto( |
| windowingStrategyProto, RehydratedComponents.forComponents(components)); |
| } catch (InvalidProtocolBufferException e) { |
| throw new IllegalStateException( |
| String.format( |
| "Unable to hydrate windowing strategy %s for %s.", |
| windowingStrategyProto, pCollectionId), |
| e); |
| } |
| } |
| |
| /** Indicates whether the given pipeline has any unbounded PCollections. */ |
| public static boolean hasUnboundedPCollections(RunnerApi.Pipeline pipeline) { |
| checkNotNull(pipeline); |
| Collection<PCollection> pCollecctions = pipeline.getComponents().getPcollectionsMap().values(); |
| // Assume that all PCollections are consumed at some point in the pipeline. |
| return pCollecctions.stream() |
| .anyMatch(pc -> pc.getIsBounded() == RunnerApi.IsBounded.Enum.UNBOUNDED); |
| } |
| |
| /** |
| * Fires all timers which are ready to be fired. This is done in a loop because timers may itself |
| * schedule timers. |
| */ |
| public static void fireEligibleTimers( |
| InMemoryTimerInternals timerInternals, |
| BiConsumer<String, WindowedValue> timerConsumer, |
| Object currentTimerKey) { |
| |
| boolean hasFired; |
| do { |
| hasFired = false; |
| TimerInternals.TimerData timer; |
| |
| while ((timer = timerInternals.removeNextEventTimer()) != null) { |
| hasFired = true; |
| fireTimer(timer, timerConsumer, currentTimerKey); |
| } |
| while ((timer = timerInternals.removeNextProcessingTimer()) != null) { |
| hasFired = true; |
| fireTimer(timer, timerConsumer, currentTimerKey); |
| } |
| while ((timer = timerInternals.removeNextSynchronizedProcessingTimer()) != null) { |
| hasFired = true; |
| fireTimer(timer, timerConsumer, currentTimerKey); |
| } |
| } while (hasFired); |
| } |
| |
| private static void fireTimer( |
| TimerInternals.TimerData timer, |
| BiConsumer<String, WindowedValue> timerConsumer, |
| Object currentTimerKey) { |
| StateNamespace namespace = timer.getNamespace(); |
| Preconditions.checkArgument(namespace instanceof StateNamespaces.WindowNamespace); |
| BoundedWindow window = ((StateNamespaces.WindowNamespace) namespace).getWindow(); |
| Instant timestamp = timer.getTimestamp(); |
| WindowedValue<KV<Object, Timer>> timerValue = |
| WindowedValue.of( |
| KV.of(currentTimerKey, Timer.of(timestamp, new byte[0])), |
| timestamp, |
| Collections.singleton(window), |
| PaneInfo.NO_FIRING); |
| timerConsumer.accept(timer.getTimerId(), timerValue); |
| } |
| } |